Metro Fiber Maps: DC Metro Area, MD, DE

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A collection of metro fiber maps for the Maryland, Delaware, and Washington DC metro area, including the major hubs in northern Virginia.  Other Virginia metro areas will be found on the Virginia and the Carolinas page, a geographical division that seems to make more sense than the alternative.

Company Maps Lit/Dark Comments
AiNET Downtown Washington DC both
Crown Castle DC Metro, Baltimore, Delaware both
Fiberlight Culpeper VADC Metro, GermantownBaltimore both
Windstream DC Metro, Baltimore, Wilmington both
Level 3 DC Metro, Baltimore Metro, Frederick  both Google Maps, zoom in
Lumos Networks Frederick, Hagerstown lit
Shentel Maryland FTTT both
Lightower DC Metro both Zoom In
SummitIG Ashburn-Reston-Manassas dark
Sunesys Baltimore, Wilmington dark KML with registration
Zayo DC Metro, Baltimore, Baltimore County both Google Maps, zoom in
Still seeking maps for the following known providers:
Cogent DC Metro, Baltimore lit on-net buildings tool
XO DC Metro, Baltimore both

Where possible, all links are to material offered on the websites of the company operating the fiber.  I prefer such links, but will sometimes host the files myself where the operator agrees, and in rare cases may point to third party sources.  Where available, links to on-net building lists are also given.

Additional maps of metro fiber networks that ought to be on this list are very welcome, as are corrections to the above links.  Please just leave a comment below or send an email to info@telecomramblings.com.

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